VOLUME 30 ISSUE 2 October 2008Journal of Achievements in Materials and Manufacturing EngineeringCopyright by International OCSCO World Press. All rights reserved.2008 151 Research paper 2008年十月期2卷30材料与制造工程成果期刊版权所有：国际OCSCO 世界出版社。
一切权利保有。
2008 ？？151研究论文1. Introduction Friction stir welding (FSW) is a new solid-state welding method developed by The Welding Institute (TWI) in 1991 [1]. The weld is formed by the excessive deformation of the material at temperatures below its melting point, thus the method is a solid state joining technique. There is no melting of the material, so FSW has several advantages over the commonly used fusion welding techniques [2-10].1.导言摩擦搅拌焊接（FSW）是焊接学？会于1991年研发的一种新型固态焊接方法。
这种焊接？是由材料在低于其熔点的温度上过量变形形成，因此此技术是一种固态连接技术。
材料不熔化，所以FSW 相比常用的熔化焊接技术有若干优势。
例如，在焊接区无多孔性或破裂，工件（尤其薄板上）没有严重扭曲，并且在连接过程中不需要填料、保护气及昂贵的焊接准备there is no significant distortion of the workpieces (particularly in thin plates), and there is no need for filler materials, shielding gases and costly weld preparation during this joining process. FSW被认为是对若干材料例如铝合金、镁合金、黄铜、钛合金及钢最显著且最有潜在用途的焊接技术FSW is considered to be the most remarkable and potentially useful welding technique for several materials, such as Al-alloys, Mg-alloys, brasses, Ti-alloys, and steels [1-16]. 然而，在FSW过程中，用不合适的焊接参数能引起连接处失效，并且使FSW连接处的力学性能恶化。
However, during FSW process using inappropriate welding parameters can cause defects in the joint and deteriorate the mechanical properties of the FSW joints [2, 3]. 此技术起初就主要是为低熔点材料如铝合金、镁合金及铜合金而广泛研究的。
The technique has initially been widely investigated for mostly low melting materials, such as Al, Mg and Cu alloys. 此技术已被证明是很有用的，尤其在连接用于航空航天用途的如高合金2XXX及7XXX系列铝合金等难熔高强度的铝合金。
It has proven to be very useful, particularly in the joining of the difficult-to-fusion join high strength Al-alloys used in aerospace applications, such as highly alloyed 2XXX and 7XXX series aluminium alloys. 做出Al-5086 H32型板摩擦搅拌对焊的高强度、抗疲劳及断裂的力学性能？。
The difficulty of making high-strength, fatigue and fracture resistant Mechanical properties of frictionstir butt-welded Al-5086 H32 plateG. .am a,*, S. Gü.lüer b, A. .akan c, H.T. Serinda. aa Mustafa Kemal University, Faculty of Engineering and Architecture, 31040 Antakya, Turkeya 土耳其安塔卡亚31040，Mustafa Kemal大学建筑工程系b General Directorate of Highways of Turkey, Ankara, Turkeyb 土耳其安卡拉土耳其高速公路总理事会？c Abant Izzet Baysal University, Faculty of Engineering and Architecture, 14280 Bolu, Turkeyc 土耳其Bolu 14280 Abant Izzet Baysal 大学建筑工程系* Corresponding author: E-mail address: gurelcam@*相关作者电子邮箱地址：gurelcam@Received 30.06.2008; published in revised form 01.10.2008收录于2008年6月30日；修订形式出版于2008年10月1日Properties？Abstract摘要目的：此论文诣在研究工具旋转速度为1600rpm 时以不同焊接速度摩擦搅拌对焊的3mm厚A1-5086 H32型板。
Purpose: The purpose of the paper is to study Al-5086 H32 plates with a thickness of 3 mm friction stir butt-welded using different welding speeds at a tool rotational speed of 1600 rpm.设计/方法论/方法：通过进行光学显微检察、围观硬度测量及力学测试（也就是拉弯测试）研究焊接速度对连接处焊接性能的影响。
Design/methodology/approach: The effect of welding speed on the weld performance of the joints was investigated by conducting optical microscopy, microhardness measurements and mechanical tests (i.e. tensile and bend tests). 也确定了在摩擦搅拌焊接过程中热输入对冷辊A1-5086板微microstructure, and thus mechanical properties, of cold-rolled Al- 5086 plates was also determined.发现：实验结果表明连接处的最大拉伸强度，约为基板拉伸强度的75%，可在用比如1600rpm 的工具旋转速度时以200mm/minde的移动速度焊接得到，并且连接处的最大弯曲角度可达180。
另一方面，连接处的最大延展性能相对低些，如低约20%。
Findings: The experimental results indicated that the maximum tensile strength of the joints, which is about 75% that of the base plate, was obtained with a traverse speed of 200 mm/min at the tool rotational speed used, e.g. 1600 rpm, and the maximum bending angle of the joints can reach 180o. The maximum ductility performance of the joints was, on the other hand, relatively low, e.g. about 20%. 这些结果并不意外，由于焊接过程中的热输入亏损了焊接区的冷作硬化效应，因此？强度限制了搅拌区的塑性。
较高的焊缝性能也可通过增加Al-5086 H32板对磨搅拌焊时摩擦棒？的插入深度获得。
These results are not unexpected due to the loss of the cold-work strengthening in the weld region as a result of the heat input during welding, and thus the confined plasticity within the stirred zone owing to strength undermatching. Higher joint performances can also be achieved by increasing the penetration depth of the stirring probe in butt-friction stir welding of Al-5086 H32 plates.研究限制/ ：结果表明强度与延展性都能通过优化工具插入深度提高。
Research limitations/implications: The results suggest that both strength and ductility performances can be increased by optimizing the tool penetration depth.独创性/价值：对摩擦搅拌对焊A1-5086 H32型板力学性能的研究。